CVE-2026-74455 (GCVE-0-2026-74455)

Vulnerability from cvelistv5 – Published: 2026-08-15 12:26 – Updated: 2026-08-19 16:36
VLAI
Title
can: peak_usb: validate uCAN receive record lengths
Summary
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: validate uCAN receive record lengths pcan_usb_fd_decode_buf() walks uCAN records packed in one USB receive buffer. Require each record to contain the fixed header for its type, and verify CAN payload bytes before copying them into the skb.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 276d989cd2dd88e2b7ab2c96fd10c86836b12781 (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < bf9d787b7e1ef59be19b35abca08194772deb97e (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 89c92a8052698dbbd3652a77c04d02bbd74a3275 (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 6067c878e38d02a3d5c43497347e143f85c9064a (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 2c8f08f3641a074da40acf05baa5a18ae2739260 (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 2427ef427bdd78d862c7c76597bfd9eda88b81f1 (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < d9c115948c3dd5fcc2d0245cec5eb76c098503c8 (git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 93fcab2c6968446316bbb49548848df604d6346f (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 5.10.265 , ≤ 5.10.* (semver)
Unaffected: 5.15.216 , ≤ 5.15.* (semver)
Unaffected: 6.1.183 , ≤ 6.1.* (semver)
Unaffected: 6.6.151 , ≤ 6.6.* (semver)
Unaffected: 6.12.103 , ≤ 6.12.* (semver)
Unaffected: 6.18.44 , ≤ 6.18.* (semver)
Unaffected: 7.1.8 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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      "cpeApplicability": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: validate uCAN receive record lengths\n\npcan_usb_fd_decode_buf() walks uCAN records packed in one USB\nreceive buffer.\n\nRequire each record to contain the fixed header for its type, and verify\nCAN payload bytes before copying them into the skb."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:36:48.775Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2026-08-15T12:26:58.175Z",
    "dateReserved": "2026-08-15T05:44:03.900Z",
    "dateUpdated": "2026-08-19T16:36:48.775Z",
    "state": "PUBLISHED"
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    },
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      "cve": "CVE-2026-74455",
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      "status": "final",
      "title": "can: peak_usb: validate uCAN receive record lengths",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-74455.json",
      "version": "1"
    },
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    "redhat_vex": {
      "current_release_date": "2026-08-19T18:59:33+00:00",
      "cve": "CVE-2026-74455",
      "id": "CVE-2026-74455",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: can: peak_usb: validate uCAN receive record lengths",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74455.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.